参数资料
型号: W39V040AQZ
厂商: WINBOND ELECTRONICS CORP
元件分类: PROM
英文描述: 512K X 8 FLASH 3.3V PROM, 11 ns, PDSO32
封装: LEAD FREE, 8 X 14 MM, STSOP-32
文件页数: 24/39页
文件大小: 440K
代理商: W39V040AQZ
W39V040A
- 30 -
Timing Waveforms for LPC Interface Mode, continued
12.5 Toggle Bit Timing Diagram
Read the DQ6 to see if the internal write complete or not.
LAD[3:0]
Start
Memory
Read
Cycle
Load Address in 8 Clocks
CLK
1 Clock
TAR
Next Start
1 Clock
2 Clocks
1 Clock
010Xb
0000b
XXXXb
Address
Sync
TAR
1111b
Tri-State
0000b
Data out 2 Clocks
X,D6,XXb
Data
XXXXb
0000b
LAD[3:0]
Start
Memory
Read
Cycle
Load Address in 8 Clocks
CLK
1 Clock
TAR
Next Start
1 Clock
2 Clocks
1 Clock
010Xb
0000b
XXXXb
Address
Sync
TAR
1111b
Tri-State
0000b
Data out 2 Clocks
Data
0000b
When internal write complete, the DQ6 will stop toggle.
X,D6,XXb
XXXXb
LAD[3:0]
1st Start
Load Address "An" in 8 Clocks
CLK
1 Clock
TAR
Start next
command
1 Clock
2 Clocks
1 Clock
011Xb
0000b
XXXXb
An[15:12]
Load Data "Dn"
in 2 Clocks
Dn[7:4]
Write the last command(program or erase) to the device in LPC mode.
Address
Sync
TAR
Data
1111b
Tri-State
0000b
An[11:8]
An[7:4]
An[3:0]
Dn[3:0]
XXAn[17:16]
Memory
Write
Cycle
XXXXb
1 Clock
#LFRAM
#RESET
#LFRAM
#RESET
#LFRAM
#RESET
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